Nortel Networks Remote Gateway 50 User manual

Nortel Communication Server 1000

Nortel Communication Server 1000 Release 4.5

Main Office Configuration for Survivable

Remote Gateway 50

Configuration Guide

Document Number: 553-3001-207

Document Release: Standard 2.00

Date: January 2006

Year Publish FCC TM

Produced in Canada

Information is subject to change without notice. Nortel Networks reserves the right to make changes in design

or components as progress in engineering and manufacturing may warrant.

Nortel, Nortel (Logo), the Globemark, This is the Way, This is Nortel (Design mark), SL-1, Meridian 1, and

Succession are trademarks of Nortel Networks.

Title page

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Revision history

January 2006

Standard 2.00. This document is up-issued for CR Q01202736, with

information on reconfiguring Call Server alarm notification levels if

necessary when configuring Adaptive Network Bandwidth Management. See

pages 76 and 84.

August 2005

Standard 1.00. This document is a new document to support

Communication Server 1000 Release 4.5.

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553-3001-207 Standard 2.00 January 2006

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Contents

List of procedures . . . . . . . . . . . . . . . . . . . . . . . . . . 9

About this document . . . . . . . . . . . . . . . . . . . . . . . 11

Subject .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Applicable systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Intended audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Conventions .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Related information .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Survivable Remote Gateway .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Main office hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Main office requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Optional features to enhance SRG functionality .. . . . . . . . . . . . . . . . . 21

Normal Mode and Local Mode overview . . . . . . . . . . . . . . . . . . . . . . . 22

Bandwidth Management Overview .. . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Capacity .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Branch office dialing plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Cross reference for branch office and SRG50 terminology . . . . . . . . . 32

Setting up the main office . . . . . . . . . . . . . . . . . . . 35

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

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SRG information required by the main office . . . . . . . . . . . . . . . . . . . 36

Main office information required by the SRG . . . . . . . . . . . . . . . . . . . 37

Zone parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Branch office IP Phone configuration at the main office . . . . . . . . . . . 46

Bandwidth Management . . . . . . . . . . . . . . . . . . . . 49

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Codec negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Configuring Bandwidth Management parameters . . . . . . . . . . . . . . . . 56

Adaptive Network Bandwidth Management . . . . . . . . . . . . . . . . . . . . 67

Tandem Bandwidth Management overview . . . . . . . . . . . . . . . . . . . . . 93

Dialing Plan Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Network using Uniform Dialing Plan . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Network using Coordinated Dialing Plan . . . . . . . . . . . . . . . . . . . . . . . 122

Alternative Call Routing for Network Bandwidth

Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Operating parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Feature interactions .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Feature packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Feature implementation using Command Line Interface . . . . . . . . . . . 149

Feature implementation using Element Manager . . . . . . . . . . . . . . . . . 151

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

Feature operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Dialing Plan configuration . . . . . . . . . . . . . . . . . . . 167

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Overview .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

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On-net dialing plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Off-net dialing plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Routing calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

H.323 zones .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Zone-based digit manipulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Configuring PSTN access for SRG users in Normal Mode . . . . . . . . . 173

Dialing plan examples .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Emergency Services configuration . . . . . . . . . . . . 225

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Emergency Services Access (ESA) .. . . . . . . . . . . . . . . . . . . . . . . . . . . 226

Configuring the NRS for ESA SPN . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

Testing the ESDN number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

Configuring ESA using Element Manager . . . . . . . . . . . . . . . . . . . . . . 239

Emergency Service using Special Numbers (SPN) .. . . . . . . . . . . . . . . 239

Enhanced UNIStim Firmware Download . . . . . . . . 241

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

Firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

Appendix A: Media Redirection Scenarios . . . . . . 245

List of terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251

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List of procedures

Procedure 1

Configuring ESN and SRG zones . . . . . . . . . . . . . . . . . 40

Procedure 2

Configuring branch office IP Phones at the

main office using LD 11 . . . . . . . . . . . . . . . . . . . . . . . . . 47

Procedure 3

Printing intrazone and interzone statistics for

a zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Procedure 4

Displaying CAC parameters for one or more

zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Procedure 5

Provisioning Tandem Bandwidth Management . . . . . .110

Procedure 6

Accessing the Zones web page . . . . . . . . . . . . . . . . . . . 152

Procedure 7

Printing zone ALTPrefix . . . . . . . . . . . . . . . . . . . . . . . . . 157

Procedure 8

Show Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .160

Procedure 9

Enabling a zone’s branch office behavior . . . . . . . . . .163

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Procedure 10

Suppress Alternative Call Routing for

NBWM alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Procedure 11

Configuring the main office . . . . . . . . . . . . . . . . . . . . . . 175

Procedure 12

Configuring the NRS database . . . . . . . . . . . . . . . . . . . 184

Procedure 13

Configuring the branch office . . . . . . . . . . . . . . . . . . . . 187

Procedure 14

Testing PSTN access using an SRG IP Phone . . . . . . . 192

Procedure 15

Configuring the main office . . . . . . . . . . . . . . . . . . . . . . 231

Procedure 16

Configuring the branch office zone . . . . . . . . . . . . . . . . 237

Procedure 17

Testing ESDN using an SRG telephone . . . . . . . . . . . . 238

Procedure 18

Upgrading firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243

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About this document

This document is a global document. Contact your system supplier or your

Nortel representative to verify that the hardware and software described are

supported in your area.

Subject

This document describes the Main Office Configuration for the Survivable

Remote Gateway 50: Configuration Guide (553-3001-207). Information in

this document complements information found in documents in the

Communication Server 1000 documentation suite, as listed in “Related

information” on page 13.

For information about how to configure the SRG50, see SRG50

Configuration Guide at http://www.nortel.com. Select Support &

Training > Technical Documentation Communication Servers >

Enterprise Communication Servers > Communication Server 1000S and

search for SRG.

Note on legacy products and releases

This NTP contains information about systems, components, and features that

are compatible with Nortel Communication Server 1000 Release 4.5

software. For more information about legacy products and releases, click the

Technical Documentation link under Support & Training on the Nortel

home page:

http://www.nortel.com

Page 12 of 258 About this document

553-3001-207 Standard 2.00 January 2006

Applicable systems

This document applies to the following systems:

• Communication Server 1000S (CS 1000S)

• Communication Server 1000M Chassis (CS 1000M Chassis)

• Communication Server 1000M Cabinet (CS 1000M Cabinet)

• Communication Server 1000M Half Group (CS 1000M HG)

• Communication Server 1000M Single Group (CS 1000M SG)

• Communication Server 1000M Multi Group (CS 1000M MG)

• Communication Server 1000E (CS 1000E)

Note: When upgrading software, memory upgrades may be required on

the Signaling Server, the Call Server, or both.

Intended audience

This document is intended for individuals responsible for configuring the

main office for Survivable Remote Gateway for organizations using CS 1000

systems.

Conventions

Terminology

In this document, the following systems are referred to generically as

“system”:

• Communication Server 1000S (CS 1000S)

• Communication Server 1000M (CS 1000M)

• Communication Server 1000E (CS 1000E)

•Meridian1

The following systems are referred to generically as “Small System”:

• Communication Server 1000M Chassis (CS 1000M Chassis)

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• Communication Server 1000M Cabinet (CS 1000M Cabinet)

The following systems are referred to generically as “Large System”:

• Communication Server 1000M Half Group (CS 1000M HG)

• Communication Server 1000M Single Group (CS 1000M SG)

• Communication Server 1000M Multi Group (CS 1000M MG)

Related information

This section lists information sources that relate to this document.

NTPs

The following NTPs are referenced in this document:

• Converging the Data Network with VoIP (553-3001-160)

• Electronic Switched Network: Signaling and Transmission Guidelines

(553-3001-180)

• Dialing Plans: Description (553-3001-183)

• Signaling Server: Installation and Configuration (553-3001-212)

• IP Peer Networking: Installation and Configuration (553-3001-213)

• Branch Office: Installation and Configuration (553-3001-214)

• Optivity Telephony Manager: Installation and Configuration

(553-3001-230)

• Software Input/Output: Administration (553-3001-311)

• Emergency Services Access: Description and Administration

(553-3001-313)

• Optivity Telephony Manager: System Administration (553-3001-330)

• Element Manager: System Administration (553-3001-332)

• IP Line: Description, Installation, and Operation (553-3001-365)

• ISDN Primary Rate Interface: Features (553-3001-369)

• Basic Network Features (553-3001-379)

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553-3001-207 Standard 2.00 January 2006

• SRG50 Configuration Guide

• Communication Server 1000M and Meridian 1: Small System Planning

and Engineering (553-3011-120)

• Communication Server 1000M and Meridian 1: Large System Planning

and Engineering (553-3021-120)

• Communication Server 1000S: Planning and Engineering

(553-3031-120)

• Communication Server 1000E: Planning and Engineering

(553-3041-120)

• Software Input/Output: Maintenance (553-3001-511)

Online

To access Nortel documentation online, click the Technical Documentation

link under Support & Training on the Nortel home page:

http://www.nortel.com

CD-ROM

To obtain Nortel documentation on CD-ROM, contact your Nortel customer

representative.

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Overview

Contents

This section contains information about the following topics:

Survivable Remote Gateway. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Main office hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Main office requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Optional features to enhance SRG functionality. . . . . . . . . . . . . . . . . . 21

Normal Mode and Local Mode overview . . . . . . . . . . . . . . . . . . . . . . . 22

Capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Branch office dialing plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Cross reference for branch office and SRG50 terminology . . . . . . . . . 32

Survivable Remote Gateway

The Survivable Remote Gateway (SRG) extends CS 1000 features from a

main office to one or more remote SRG locations (branch offices). The

SRG50 Release 1.0 operates with the CS 1000 running Release 4.5 and is

backward compatible to Release 3.0 and Release 4.0. SRG does not operate

with CS 1000 Release 1.0 and Succession 1000 2.0 systems.

In addition to the SRG 1.0 model, which is positioned as the lower cost

alternative to the Media Gateway 1000B product, there is a new “mini” model

for the smaller branch office, known as the SRG50. The SRG50 is optimized

for the 5-32 user branch office.

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The SRG is implemented on a BCM50 platform and is connected to a

CS 1000 at the main office over a LAN or a WAN. This configuration allows

the call processing for the IP Phones at the SRG site to be centralized at the

main office. The Call Server at the main office provides the call processing

for the IP Phones in both the main office and branch offices. The SRG

provides call processing functionality to telephones in local mode and local

analog devices. The SRG also provides digital and analog trunk access to the

local Public Switched Telephone Network (PSTN).

In order for devices in the CS 1000 network to access analog devices at the

SRG or to access the PSTN at the SRG, virtual trunks are used over the LAN/

WAN.

If the main office fails to function, or if there is a network outage, the SRG

provides service to the telephones located at the branch office. This enables

the IP Phones to survive the outage between the branch office and the main

office.

The SRG is designed to work with a main office only if the main office and

the SRG use a common dialing plan. Any other configuration is not

guaranteed to work reliably. Since the Call Server and the SRG handle dialing

slightly differently, ensure that any settings you use for the main office, that

need to interact with the SRG, can be accommodated by the SRG call

processing.

Figure 1 on page 17 shows the networking among the main office, SRG, and

IP Phones.

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Figure 1:

SRG network

Main office hardware description

The main office must be one of the following systems:

• CS 1000S

• CS 1000E

• CS 1000M Cabinet

• CS 1000M Chassis

• CS 1000M HG

• CS 1000M SG

• CS 1000M MG

Note: Throughout this document, references to CS 1000 systems

encompass all CS 1000 system types.

The diagrams throughout this documentation show a CS 1000S main office.

All of the systems appearing in the list perform identical main office

functions as far as the SRG is concerned. For information about the SRG,

refer to SRG50 Configuration Guide.

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Signaling Server

The Signaling Server is required at the main office only. It provides the

following functions:

• Terminal Proxy Server (TPS)

— The TPS provides a connection from the IP Phones to the Call

Server. It also provides a connection path from a virtual trunk to the

Call Server.

• Web server for Element Manager and Network Routing Service (NRS)

Manager

A second Signaling Server can be used to provide redundancy in the case of

failure in the primary Signaling Server at the main office.

A similar function to the Signaling Server exists at the SRG.

The Signaling Server supports both en bloc and overlap signaling. En bloc

signaling is standard. If overlap signaling is to be used, Nortel recommends

that it be installed and enabled on all Signaling Servers in the network. Failure

to do so results in delays in call completion due to overlap to en bloc

conversion.

For more information about the Signaling Server, refer to Signaling Server:

Installation and Configuration (553-3001-212). For more information about

H.323 and overlap signaling, refer to IP Peer Networking: Installation and

Configuration (553-3001-213).

Network Routing Service

• The NRS application provides network-based routing, combining the

following into a single application:

• H.323 Gatekeeper — provides central dialing plan management and

routing for H.323-based endpoints and gateways.

Note: NRS also contains SIP Redirect Server but SIP Trunks are not

supported on an SRG.

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• NRS Database — stores the central dialing plan in XML format for the

H.323 Gatekeeper. The H.323 Gatekeeper accesses this common

endpoint and gateway database.

• Network Connect Server (NCS) — used only for Media Gateway

1000B (MG 1000B), SRG, Geographic Redundancy and Virtual Office

solutions. The NCS allows the Line TPS (LTPS) to query the NRS using

the UNIStim protocol.

• NRS Manager web interface — the NRS provides its own web

interface to configure the H.323 Gatekeeper and the NCS.

The NRS application provides routing services to H.323 devices. The H.323

Gatekeeper can be configured to support H.323 routing services. The H.323

Gatekeeper can reside on the same Signaling Server.

Each system in an IP Peer network must register to the NRS. The NRS

software identifies the IP addresses of systems based on the network-wide

numbering plan. NRS registration eliminates the need for manual

configuration of IP addresses and numbering plan information at every site.

When configuring the NRS it is necessary to enable the NCS. Ensure that the

check box “Network Connection Server enabled” is checked in the NRS

configuration window of CS 1000 Element Manager.

For information about configuring the NRS, refer to IP Peer Networking:

Installation and Configuration (553-3001-213).

Telephones

The SRG supports the following telephones:

• IP Phone 2001

• IP Phone 2002

• IP Phone 2004

• IP Phone 2007

• IP Softphone 2050

• Mobile Voice Client (MVC) 2050

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553-3001-207 Standard 2.00 January 2006

• Analog (500/2500-type) telephones

• WLAN Handset 2210/2211

Note: Throughout this document, the IP Phones in this list are referred

to collectively as IP Phones.

Main office requirements

The branch office requires the following at the main office:

• CS 1000 hardware, running Succession 3.0, CS 1000 Release 4.0, or

CS 1000 Release 4.5.

• IP Peer H.323 Trunk (H323_VTRK) package 399. This package is

required to support H.323 functionality. Package 184 is included with

package 399.

• The main office must have a software Service Level of 2 or higher to

work with the branch office.

• Ensure that you have ordered enough IP user and Virtual Trunk licenses

at the main office to support the SRG50 or the capacity of your branch

office.

The main office requires the following software packages to support the

specified Basic Network features. Refer to Basic Network Features (553-

3001-379) for more information about these features.

• Network Call Back Queuing (MCBQ) package 38. This package is

required for SRG IP Phones to invoke any queuing feature or ringback

when free.

• Network Speed Call (NSC) package 39. This package is required for

SRG IP Phones to invoke the Network Speed Call feature.

The main office requires the following software packages to support the

specified ISDN Primary Rate Interface features. Refer to ISDN Primary Rate

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Nortel Networks Remote Gateway 50 User manual

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